Supported File Formats - Open 200+ File Types Online

WebTech360 Viewer is a free online file viewer that opens more than 200 file formats directly in your web browser. There is nothing to install and no account to create - you just open https://viewer.webtech360.com/, drop a file onto the page, and it renders instantly. Because every file is processed locally on your device, nothing is ever uploaded to a server.

Office documents and PDFs

Open PDF documents, Word (DOCX/DOC), Excel (XLSX/XLS), PowerPoint (PPTX), CSV, Rich Text, OpenDocument and Apple iWork files without Microsoft Office or any other program:

PDF viewer: https://viewer.webtech360.com/pdf-viewer/

Word DOCX viewer: https://viewer.webtech360.com/docx-viewer/

Excel viewer: https://viewer.webtech360.com/xlsx-viewer/

PowerPoint viewer: https://viewer.webtech360.com/pptx-viewer/

E-books, code and data

View EPUB, MOBI/AZW3 and comic archives (CBZ/CBR), plus Markdown, JSON, XML, YAML, Jupyter notebooks and source code with syntax highlighting. Data formats include SQLite databases, Parquet, Arrow/Feather and HDF5:

EPUB viewer: https://viewer.webtech360.com/epub-viewer/

JSON viewer: https://viewer.webtech360.com/json-viewer/

Images (including HEIC and PSD)

Open PNG, JPG, SVG, TIFF, HEIC/HEIF, Photoshop PSD, Illustrator AI and camera RAW files - handy when Windows refuses to display an iPhone HEIC photo:

HEIC viewer: https://viewer.webtech360.com/heic-viewer/

3D, CAD and GIS

Preview STL, OBJ, PLY and GLB 3D models, AutoCAD DWG/DXF drawings, STEP/IGES CAD, IFC/BIM, G-code, and LiDAR point clouds (LAS), plus GeoJSON, KML, GPX and Shapefiles - no AutoCAD or SolidWorks required:

3D model viewer: https://viewer.webtech360.com/model3d-viewer/

DWG viewer: https://viewer.webtech360.com/dwg-viewer/

DXF viewer: https://viewer.webtech360.com/dxf-viewer/

STEP viewer: https://viewer.webtech360.com/step-viewer/

Archives, media and more

Open ZIP and RAR archives and browse what is inside, play MP4 video and MP3 audio, and even view DICOM medical images and FITS astronomy files. See the full list on the all-formats page:

All formats: https://viewer.webtech360.com/formats/

Read the complete format guide and how-tos here:

More guides:

Medium article: https://medium.com/@bacsonlocphat68/the-complete-guide-to-opening-any-file-online-for-free-2026-d676d41e9f8f

WordPress blog: https://webtech360viewer.wordpress.com/

telegra.ph guide: https://telegra.ph/WebTech360-Viewer---Free-Online-File-Viewer-PDF-Word-Excel-CAD-3D-07-07

Try it now - open any file free at https://viewer.webtech360.com/

https://medium.com/@bacsonlocphat68